CN109898245A - A kind of needle gage adjustment structure of sewing machine - Google Patents
A kind of needle gage adjustment structure of sewing machine Download PDFInfo
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- CN109898245A CN109898245A CN201910262275.5A CN201910262275A CN109898245A CN 109898245 A CN109898245 A CN 109898245A CN 201910262275 A CN201910262275 A CN 201910262275A CN 109898245 A CN109898245 A CN 109898245A
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- needle gage
- connecting shaft
- sewing machine
- adjustment structure
- swing seat
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- 238000009958 sewing Methods 0.000 title claims abstract description 43
- 238000009434 installation Methods 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009711 regulatory function Effects 0.000 description 2
- 230000002040 relaxant effect Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The present invention provides a kind of needle gage adjustment structures of sewing machine, belong to clothes manufacturing equipment technical field.The technical problems such as the needle gage regulating mechanism assembly that it solves existing sewing machine is complicated, noise is big.Sewing machine includes bottom plate, this needle gage adjustment structure includes the driver and swing seat that bottom base plate is arranged in, connecting shaft is circumferentially fixed on the output shaft of driver and driver is able to drive connecting shaft rotation, wobble crank is installed in connecting shaft, the outer end of wobble crank extends along the radial direction of connecting shaft and is connected between the outer end and swing seat of wobble crank by connecting rod, and connecting rod is able to drive swing seat swing.Needle gage adjustment structure in the present invention assembles generation that is simple, reliable and stable and can be effectively reduced noise.
Description
Technical field
The invention belongs to clothes manufacturing equipment technical fields, are related to a kind of sewing machine, especially a kind of needle gage of sewing machine
Adjustment structure.
Background technique
Sewing machine is formed one or more stitchings on sewing, is made one or more layers seam with one or more sewing thread
The machine that material interweaves or unites by a seam.Fabrics and leather, plastics, the paper such as function of sewing sewing cotton, fiber crops, silk, hair, staple fibre
Equal products, the stitching neat appearance stitched out, it is smooth securely, sewing velocity is fast, uses simplicity.Some sewing machines currently on the market
When terminating sewing, since needle gage is unable to adjust, baseline and upper thread the end of a thread cannot form effective self-locking, be easy to take off when pullling
It falls, and after sewing finishing when trimming, the end of a thread stayed on sewing will appear that one is long and the other is short, influence the aesthetics of stitching.Such as
In flat seaming machine, due to its chain-type stitch, in seam or after having stitched, the end of a thread is loose, and washing or rear road easily cause entire line when processing
Mark is loose, influences clothes quality.There are also some sewing machines to be provided with needle gage adjustment structure currently on the market, to adapt to different sewings
The differing needles that the multi-party reason such as cloth, bind generates are away from demand, such as the needle gage adjusting of sewing machine for covering chain stitch is to pass through dial plate
And needle gage adjuster is adjusted, and must be adjusted when stopping sewing, it is not very convenient.
Such as Chinese patent (notification number: CN108611769A, publication date: 2018-10-02) discloses a kind of sewing machine,
Stud, regulator shaft and the needle gage adjuster being fixed on regulator shaft, the upper end connection for the connecting rod of falling feeding are adjusted including needle gage
On needle gage adjuster, the lower end for the connecting rod of falling feeding is connected in swing seat, and swing seat is swung by two positioning pins to be arranged the bottom of at
On plate, sliding slot is provided in the middle part of the connecting rod of falling feeding, backstitch one end of spanner crank and sliding slot be slidably connected, the other end with fall
Spanner axis connection is stitched, wrench shaft is backstitched and is connect by backstitching electromagnet crank with electromagnet is backstitched, and by backstitching solenoid actuated
Wrench shaft rotation is backstitched, the middle part for the connecting rod of falling feeding or the middle part for backstitching spanner crank are connect by reset tension spring with bottom plate.
Change the angle of swing seat in above patent document in feeding distance in the front-back direction by adjusting stud, thus
Realize the change of needle gage；The automatic group of falling feeding rod movement is driven to backstitch to drive swing seat to swing realization by backstitching electromagnet,
It adjusts and inconvenient for use, movement is not precisely reliable enough, and noise is big；In addition each drive mechanism is not precisely reliable enough, installation
It is inconvenient with connection.
Summary of the invention
The present invention addresses the above problems in the prior art, provides a kind of needle gage adjustment structure of sewing machine, this hair
It is bright the technical problem to be solved is that: how to provide it is a kind of assemble it is simple and reliable, can sewing when change needle gage needle gage adjusting
Structure.
Object of the invention can be realized by the following technical scheme:
A kind of needle gage adjustment structure of sewing machine, sewing machine includes bottom plate, and the needle gage adjustment structure includes being arranged in institute
State the driver and swing seat of bottom base plate, which is characterized in that be circumferentially fixed on the output shaft of the driver connecting shaft and
The driver is able to drive connecting shaft rotation, is installed with wobble crank in the connecting shaft, the wobble crank it is outer
The radial direction along the connecting shaft is held to extend and be connected between the outer end and the swing seat of the wobble crank by connecting rod
It connects, the connecting rod is able to drive the swing seat and swings.
The principle is as follows: swing seat is connected with the feed spool in sewing machine, and feed spool is connected with retainer component, uses
When, rotated by driver drives connecting shaft, connecting shaft rotation drive wobble crank swing, then by with wobble crank one end
Hinged connecting rod drives swing seat movement, realizes the variation of needle gage by changing the angle of swing seat.
When needs " 0 " needle gage, wobble crank is parallel with vertical plane, and swing seat is ultimately formed horizontal by angle a
The situation of " 0 " needle gage；When wobble crank is located at the position with the angled B of vertical plane, swing seat is swung to horizontal by angle
The position for spending b, ultimately form it is maximum along suture needle away from situation；When wobble crank is located at the position with the angled C of vertical plane, pendulum
Dynamic seat swings to the position horizontal by angle c, ultimately forms the maximum situation for backstitching needle gage.Similarly, when wobble crank position
When position between 0-C of angle B-, the position that swing seat is between angle b-a-c will drive, to realize maximum
Along any needle gage being sewn between maximum backstitch, the arm of force of the step angle and wobble crank of needle gage degree of regulation and driver is long
It is related.
Driver is fixed on the bottom of bottom plate in the technical program, and the entirety that can influence machine to avoid driver in this way is long
Degree or width are also easier to realize grease proofing compared to other positions.
It can be controlled and just backstitched and the adjusting of needle gage by a driving source in the technical program, and not by working condition
Influence, can adjust at any time；Connection structure between driver and swing seat is simple and reliable, increase can assembly space, fit
When relaxing limitation of the installation space to part size, the difficulty of processing of part is reduced, artificial dress is largely reduced
With difficulty, manufacturing cost is saved, improves productivity effect；This needle gage adjustment structure ensure that needle gage regulatory function not simultaneously
Under the premise of impacted, it is greatly reduced the noise generated when needle gage is adjusted, surrounding enviroment is improved, also reduces contact surface
The pressure born reduces the impact force that rod piece collision generates, improves the service life of part.
In the needle gage adjustment structure of above-mentioned sewing machine, the bottom base plate has boss, opens up in the middle part of the boss
There is mounting groove, the driver is installed in the outside of the boss, and the swing seat and connecting shaft are located at the installation of the boss
In slot, there is installation through-hole, the output shaft outer end of the driver is plugged in the installation through-hole on the cell wall of the mounting groove
It is interior.
In the needle gage adjustment structure of above-mentioned sewing machine, the driver be stepper motor, the stepper motor it is defeated
The junction of shaft and the connecting shaft is equipped with connector sleeve, and the connector sleeve is fixed at the installation through-hole of the boss, described
The output shaft of stepper motor and the connecting shaft are rotatably plugged in the connector sleeve.
In the needle gage adjustment structure of above-mentioned sewing machine, the swing seat is U-shaped, and two middle side parts of the swing seat are opened
Equipped with pin hole, there is the bolt being inserted into the pin hole on the bottom plate.Swing seat can be swung around pin hole.Swing seat can be with
Directly use structure in the prior art.
In the needle gage adjustment structure of above-mentioned sewing machine, the side of the swing seat has interconnecting piece, and the connecting rod is in
One end of long strip-board shape, the connecting rod is hinged by the outer end of axial screw and the interconnecting piece, the other end of the connecting rod
It is hinged by the outer end of pin and the wobble crank.
In the needle gage adjustment structure of above-mentioned sewing machine, the output shaft of the connecting shaft and the stepper motor is in long
Cylinder is rod-shaped and the two diameter is identical, and one end of the connecting shaft has the interconnecting piece one formed after one section of semicolumn of removal,
The output shaft outer end of the stepper motor has matched interconnecting piece two corresponding with the interconnecting piece one.Interconnecting piece one with connect
Portion two is in complementary relationship, and the two merges one complete cylinder of composition, then is fixed by connector sleeve, to be formed circumferential solid
Even, stable connection is reliable, and assembly is simple.
In the needle gage adjustment structure of above-mentioned sewing machine, the connecting shaft is rod-shaped in strip cylinder, the connecting shaft
Two sides of the connecting shaft are run through in the two sides that one end is opened up the fluted and described groove by end face axially inwards along it, described
The output shaft outer end of stepper motor has flat plug division, and the plug division grafting is in the groove and the plug division
The sides of two side planes and the groove mutually recline.This structure can also be assembled easily and fast, and guarantee to connect
The reliability of the output axis connection of shaft step motor.
Compared with prior art, having the advantage that in the present invention
1, the driver in the present invention is fixed on the bottom of bottom plate, and the entirety that can influence machine to avoid driver in this way is long
Degree or width are also easier to realize grease proofing compared to other positions.
2, it can be controlled and just backstitched and the adjusting of needle gage (such as close needle seam) by a driving source in the present invention, and not
It is influenced, can be adjusted at any time by working condition.
3, the present invention in driver and swing seat between connection structure it is simple and reliable, increase can assembly space, fit
When relaxing limitation of the installation space to part size, the difficulty of processing of part is reduced, artificial dress is largely reduced
With difficulty, productivity effect is improved.
4, the needle gage adjustment structure in the present invention greatly subtracts under the premise of ensure that needle gage regulatory function is unaffected
The noise that small needle gage generates when adjusting, improves surrounding enviroment, also reduces the pressure that contact surface is born, reduce rod piece
The impact force generated is collided, the service life of part is improved.
5, the needle gage adjustment structure in the present invention is by optimizing the planform of driver output shaft and connecting shaft, and passes through
Connector sleeve is set, so that assembly is simpler, use is reliable and stable.
Detailed description of the invention
Fig. 1 is that this needle gage adjustment structure installs and uses structural schematic diagram.
Fig. 2 is the schematic perspective view of this needle gage adjustment structure.
Fig. 3 is structural schematic diagram of this needle gage adjustment structure in " 0 " needle gage state.
Fig. 4 is structural schematic diagram of this needle gage adjustment structure when along maximum needle gage state is stitched.
Fig. 5 is structural schematic diagram of this needle gage adjustment structure when backstitching maximum needle gage state.
Fig. 6 is the partial structural diagram of this needle gage adjustment structure.
Fig. 7 is the stepping motor structure schematic diagram in embodiment one in this needle gage adjustment structure.
Fig. 8 is the connecting axle structure schematic diagram in embodiment one in this needle gage adjustment structure.
Fig. 9 is that connecting shaft and the connection structure of stepper motor output shaft are illustrated in this needle gage adjustment structure in embodiment two
Figure.
In figure, 1, bottom plate；1a, boss；1b, mounting groove；2, swing seat；2a, pin hole；2b, interconnecting piece；3, connecting shaft；3a,
Interconnecting piece one；3b, groove；4, connector sleeve；5, driver；51, stepper motor；51a, interconnecting piece two；51b, plug division；6, it swings
Crank；7, connecting rod；8, axial screw；9, pin.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Embodiment one
As depicted in figs. 1 and 2, this sewing machine includes bottom plate 1, and needle gage adjustment structure includes that the drive of 1 bottom of bottom plate is arranged in
Device 5 and swing seat 2 are moved, connecting shaft 3 is circumferentially fixed on the output shaft of driver 5 and driver 5 is able to drive 3 turns of connecting shaft
It is dynamic, wobble crank 6 is installed in connecting shaft 3, the outer end of wobble crank 6 extends along the radial direction of connecting shaft 3 and wobble crank 6
Outer end and swing seat 2 between be connected by connecting rod 7, connecting rod 7 is able to drive the swing of swing seat 2；Further, 1 bottom of bottom plate
Portion has boss 1a, and mounting groove 1b is offered in the middle part of boss 1a, and driver 5 is installed in the outside of boss 1a, swing seat 2 and connection
Axis 3 is located in the mounting groove 1b of boss 1a, has installation through-hole on the cell wall of mounting groove 1b, and the output shaft outer end of driver 5 is inserted
It is located in installation through-hole；Swing seat 2 is U-shaped, and two middle side parts of swing seat 2 offer pin hole 2a, has insertion pin hole on bottom plate 1
Bolt in 2a；Swing seat 2 can be swung around pin hole 2a；The side of swing seat 2 has interconnecting piece 2b, and connecting rod 7 is in strip plate
One end of shape, connecting rod 7 is hinged by axial screw 8 and the outer end of interconnecting piece 2b, and the other end of connecting rod 7 passes through pin 9 and pendulum
The outer end of dynamic crank 6 is hinged.
Swing seat 2 is connected with the feed spool in sewing machine, and feed spool is connected with retainer component, in use, passing through drive
Dynamic device 5 drives connecting shaft 3 to rotate, and the rotation of connecting shaft 3 drives wobble crank 6 to swing, then by hinged with 6 one end of wobble crank
Connecting rod 7 drive swing seat 2 to move, realize the variation of needle gage by changing the angle of swing seat 2.
In conjunction with shown in Fig. 3 to Fig. 5, when needs " 0 " needle gage, wobble crank 6 is parallel with vertical plane, swing seat 2 and level
The angled a in face, ultimately forms the situation of " 0 " needle gage；When wobble crank 6 is located at the position with the angled B of vertical plane, swing seat
2 swing to the position horizontal by angle b, ultimately form it is maximum along suture needle away from situation；When wobble crank 6 be located at it is vertical
When the position of the angled C in face, swing seat 2 swings to the position horizontal by angle c, ultimately forms the maximum shape for backstitching needle gage
Condition.Similarly, when position when wobble crank 6 between 0-C of angle B-, will drive swing seat 2 be in angle b-a-c it
Between position, to realize maximum along any needle gage being sewn between maximum backstitch, the step of needle gage degree of regulation and driver 5
The arm of force of elongation and wobble crank 6 length is related.
Driver 5 is fixed on the bottom of bottom plate 1 in this needle gage adjustment structure, can influence machine in this way to avoid driver 5
Entire length or width be also easier to realize grease proofing compared to other positions.
It can be controlled and just backstitched and the adjusting of needle gage by a driving source in this needle gage adjustment structure, and not worked
The influence of state can adjust at any time；Connection structure between driver 5 and swing seat 2 is simple and reliable, and sky can be assembled by increasing
Between, limitation of the installation space to part size is suitably relaxed, the difficulty of processing of part is reduced, largely reduces people
Work assembly difficulty, saves manufacturing cost, improves productivity effect；This needle gage adjustment structure ensure that needle gage adjusting function simultaneously
Under the premise of energy is unaffected, it is greatly reduced the noise generated when needle gage is adjusted, surrounding enviroment is improved, also reduces and connect
The pressure that contacting surface is born reduces the impact force that rod piece collision generates, improves the service life of part.
As shown in Figure 2 and Figure 6, driver 5 is stepper motor 51, the output shaft of stepper motor 51 and connection in the present embodiment
The junction of axis 3 is equipped with connector sleeve 4, and connector sleeve 4 is fixed at the installation through-hole of boss 1a, the output shaft of stepper motor 51 and company
Spindle 3 is rotatably plugged in connector sleeve 4.
As shown in Figure 7 and Figure 8, the output shaft of connecting shaft 3 and stepper motor 51 is in that strip cylinder is rod-shaped and the two diameter
Identical, one end of connecting shaft 3 has one 3a of interconnecting piece formed after one section of semicolumn of removal, the output shaft outer end of stepper motor 51
With matched interconnecting piece two 51a corresponding with one 3a of interconnecting piece, one 3a of interconnecting piece and two 51a of interconnecting piece be in complementary relationship, two
Person merges one complete cylinder of composition, then is fixed by connector sleeve 4, is circumferentially connected to be formed, and stable connection is reliable,
Assembly is simple.
Embodiment two
As shown in figure 9, the present embodiment is roughly the same with embodiment one, the difference is that, connecting shaft 3 in the present embodiment
Two sides of connecting shaft 3, stepping electricity are run through in the two sides that one end is opened up fluted 3b and groove 3b by end face axially inwards along it
The output shaft outer end of machine 51 have flat plug division 51b, plug division 51b be plugged in groove 3b and plug division 51b two
The side of side plane and groove 3b mutually reclines, and this structure can also be assembled easily and fast, and guarantees 3 stepping of connecting shaft
The reliability of the output axis connection of motor 51.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although 1, bottom plate is used more herein；1a, boss；1b, mounting groove；2, swing seat；2a, pin hole；2b, connection
Portion；3, connecting shaft；3a, interconnecting piece one；3b, groove；4, connector sleeve；5, driver；51, stepper motor；51a, interconnecting piece two；
51b, plug division；6, wobble crank；7, connecting rod；8, axial screw；9, the terms such as pin, but be not precluded using other terms
Possibility.The use of these items is only for be more convenient to describe and explain essence of the invention；It is construed as any
It is a kind of it is additional limitation be all to be disagreed with spirit of that invention.
Claims (7)
1. a kind of needle gage adjustment structure of sewing machine, sewing machine includes bottom plate (1), and the needle gage adjustment structure includes being arranged in institute
State the driver (5) and swing seat (2) of bottom plate (1) bottom, which is characterized in that circumferentially solid on the output shaft of the driver (5)
It is connected with connecting shaft (3) and the driver (5) is able to drive the connecting shaft (3) rotation, be installed with pendulum on the connecting shaft (3)
The outer end of dynamic crank (6), the wobble crank (6) extends along the radial direction of the connecting shaft (3) and the wobble crank (6)
Outer end and the swing seat (2) between be connected by connecting rod (7), the connecting rod (7) is able to drive the swing seat (2) pendulum
It is dynamic.
2. the needle gage adjustment structure of sewing machine according to claim 1, which is characterized in that bottom plate (1) bottom has
Boss (1a), boss (1a) middle part offer mounting groove (1b), and the driver (5) is installed in the outer of the boss (1a)
Side, the swing seat (2) and connecting shaft (3) are located in the mounting groove (1b) of the boss (1a), the slot of the mounting groove (1b)
There is installation through-hole, the output shaft outer end of the driver (5) is plugged in the installation through-hole on wall.
3. the needle gage adjustment structure of sewing machine according to claim 1 or 2, which is characterized in that the driver (5) is step
Into motor (51), the output shaft of the stepper motor (51) and the junction of the connecting shaft (3) are equipped with connector sleeve (4), described
Connector sleeve (4) is fixed at the installation through-hole of the boss (1a), the output shaft of the stepper motor (51) and the connecting shaft
(3) it is rotatably plugged in the connector sleeve (4).
4. the needle gage adjustment structure of sewing machine according to claim 3, which is characterized in that the swing seat (2) is U-shaped,
Two middle side parts of the swing seat (2) offer pin hole (2a), have on the bottom plate (1) and are inserted into inserting in the pin hole (2a)
Pin.
5. the needle gage adjustment structure of sewing machine according to claim 4, which is characterized in that the side of the swing seat (2)
With interconnecting piece (2b), the connecting rod (7) is in long strip-board shape, and one end of the connecting rod (7) passes through axial screw (8) and the company
The outer end of socket part (2b) is hinged, and the other end of the connecting rod (7) passes through the outer end phase of pin (9) and the wobble crank (6)
Hingedly.
6. the needle gage adjustment structure of sewing machine according to claim 3, which is characterized in that the connecting shaft (3) with it is described
The output shaft of stepper motor (51) is in that strip cylinder is rod-shaped and the two diameter is identical, and one end of the connecting shaft (3), which has, to be gone
Except the interconnecting piece one (3a) formed after one section of semicolumn, the output shaft outer end of the stepper motor (51) has and the interconnecting piece
The corresponding matched interconnecting piece two (51a) of one (3a).
7. the needle gage adjustment structure of sewing machine according to claim 3, which is characterized in that the connecting shaft (3) is in strip
Cylinder is rod-shaped, and one end of the connecting shaft (3) is opened up fluted (3b) and the groove (3b) by end face axially inwards along it
Two sides of the connecting shaft (3) are run through in two sides, and the output shaft outer end of the stepper motor (51) has flat grafting
Portion (51b), the plug division (51b) be plugged in the groove (3b) and two side planes of the plug division (51b) with it is described
The side of groove (3b) mutually reclines.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910262275.5A CN109898245A (en) | 2019-04-02 | 2019-04-02 | A kind of needle gage adjustment structure of sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910262275.5A CN109898245A (en) | 2019-04-02 | 2019-04-02 | A kind of needle gage adjustment structure of sewing machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040297A (en) * | 2015-07-21 | 2015-11-11 | 西安标准工业股份有限公司 | Industrial sewing machine with electronic stitch length adjusting mechanism |
| CN204825280U (en) * | 2015-02-03 | 2015-12-02 | 上海富山精密机械科技有限公司 | Sewing machine's gauge needle directly drives control mechanism |
| CN206521587U (en) * | 2017-02-28 | 2017-09-26 | 浙江中捷缝纫科技有限公司 | A kind of upper feed mechanism of sewing machine |
| CN108611769A (en) * | 2018-06-29 | 2018-10-02 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN210151359U (en) * | 2019-04-02 | 2020-03-17 | 浙江美机缝纫机有限公司 | Sewing machine's gauge needle adjusts structure |
-
2019
- 2019-04-02 CN CN201910262275.5A patent/CN109898245A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204825280U (en) * | 2015-02-03 | 2015-12-02 | 上海富山精密机械科技有限公司 | Sewing machine's gauge needle directly drives control mechanism |
| CN105040297A (en) * | 2015-07-21 | 2015-11-11 | 西安标准工业股份有限公司 | Industrial sewing machine with electronic stitch length adjusting mechanism |
| CN206521587U (en) * | 2017-02-28 | 2017-09-26 | 浙江中捷缝纫科技有限公司 | A kind of upper feed mechanism of sewing machine |
| CN108611769A (en) * | 2018-06-29 | 2018-10-02 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN210151359U (en) * | 2019-04-02 | 2020-03-17 | 浙江美机缝纫机有限公司 | Sewing machine's gauge needle adjusts structure |
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Address after: No. 8, Jinxiu Road, Xinhe Town, Wenling City, Taizhou City, Zhejiang Province, 317500 Applicant after: Meiji Technology Group Co.,Ltd. Address before: 317502 Zhongxiang Industrial Zone, Xinhe Town, Wenling City, Taizhou City, Zhejiang Province Applicant before: ZHEJIANG MAQI SEWING MACHINE Co.,Ltd. |
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| CB02 | Change of applicant information |